All electrical construction, all materials, appliances, motors, heating devices, and apparatus used in connection with electrical work and the operation of all electrical apparatus within the city limits shall conform to the rules and requirements of the electrical code where work is performed or equipment and apparatus installed; however, the necessity, good service and said results often require larger sizes of wire, more branch circuits, and better types of equipment than the minimum which is specified in the electrical code. Therefore, the electrical inspector supervising the enforcement of the electrical code will have the responsibility and authority for making interpretations of the rules, for deciding upon the approval of equipment, materials, construction and for granting the special permission contemplated in a number of the rules, and the electrical inspector, where necessary, shall follow the code procedure for securing official interpretations of said electrical code. (1980 Code § 4-44)